Welcome to the mathematics research hub for papers categorised under MSC 2010 classifications as Algebraic Topology. Papers on this page are organised in collections from 55- through 55U, although not all collections may have papers published in that area at this time. Visit the MSC2010 database from MathScinet for a full list of codes.

**Jump to the following areas**

**55-XX: Algebraic topology 55Mxx: Classical topics 55Nxx: Homology and cohomology theories 55Pxx: Homotopy theory 55Qxx: Homotopy groups 55Rxx: Fiber spaces and bundles 55Sxx: Operations and obstructions 55Txx: Spectral sequences 55Uxx: Applied homological algebra and category theory**